Mining machine



C. F. OSGOOD MINING MACHINE Dec. 24, 1929.

Filed June G, 192:5 s sheets-sheet Dec. `24, 1929.

c. E. ose-oon MINING MACHINE Filed June 6, 1923 3 Sheets-Sheet' umlllll-llnmluunu.:

Illllh Bas., Z4, l`929. c. F. osGooD 1 1,741,130

MINING MACHINE Filed June 5. 19.23 3 Sheets-Sheet 3 vertical shaft 25 coaxial with the aXis of the cutter bar 2. The cutter bar is rigidly connected to a turntable 26 and is provided with projections 27 to which a hook 28, suitably secured to the free end of the cable 4, or a hook 28 secured to the cable 4, is attached when the cutter ba-r is swung about its axis in its different operative positions, the bar being suitably locked in position by a pin 29 carried by the frame section 7 Operatively connected to the shaft 25 is a cutter `chain driving sprocket (not shown). adapted to actuate in a well known manner, the cutter chain 17 which is mounted on thecutter arm. It will be clearly evident that the cutter bit carrying cutter 4chain 17 may be actuated in oppositedirections asconditions require, and that when the gears 19 and 20 are out of en.- gagementwith the gear 21 the cutter chain sprocket may remain idle while the motor is running.

Referring more particularly to the feed frame section 6, which incorporates my improved feeding mechanism, it will be noted that sufitablysecured to the rotor shaft 13 is a .pinion 30 rotatable on a longitudinal axis which in turn 'meshes with a gear 31 suitably journaled on a ,parallel axis on the feed frame section, this gear having attached thereto a Vdisc 32 having a crank pin 33 to which is connected a'connecting rod 34. The connecting rod 34 is herein formed in two parts which are threaded together as at 35 to `ipermfit adjustment of the length of the connecting rod, the parts being provided with ay lock nut 36 to prevent accidental change of adjustment. At its end remote from :thea-crank :pin the connecting rod is also suitably -connected through a wrist pin 37 to .a yroc'kerarm 38 which is journaled on a sleeve :39 journaled on a longitudinally dif*- posed horizontalshaft 40 suitably secured to the frame section. Keyed to the sleeve is a ratchet wheel 41 adapted to be engaged by a pawl 42 carried by the rocker arm 33 by which the ratchet wheel, and with it the sleeve, may =be rotated. It is obvious that the crank pin 33 may be adjusted radially relative to the axis of the crank disk 32 to vary the angular -movement of the rocker arm 38 and consequently the speed of rota tion of the ratchet wheel 41. Also suitably secured to the sleeve is a pinion 43 which meshes with a gear 44 journaled on a hori- Zontal'shaft 45 disposed in the longitudinal center'ofthe machine. This shaft is secured against rotation at its ends in brackets 46 and'47 carried :by the vfeed frame section and hassuitably mounted thereon a rotary cable tensioni-ng device, herein in the form of a drum 48 having winding surfaces 49 and 49 of different diameters fo-rmed thereon and which may serve as differential drums. A cable'4 which 4is wound on the surface 49 of the `drum is used for sumping the bar under the coal while the cable 4 wound on the surface 49 of the drum is used for cutting along the face, when a double strand cable is used, and for moving the machine along the face at a faster, or haulage speed, when a single strand cable is used. interposed between the gear 44 and the drum -is a friction clutch 50 comprising a friction surface 51 which is formed on a web integral with the gear 44 and which is adapted to engage VaV ycomplementary friction surface 51 formed on kthe drum. rlhe shaft 45 is also threaded, as at 52, 'to receive a nut- 53 provided with a handwheel 54, suitable manipulation of the handwheel causing the drum to move to the right and pressing the fr-iction surfaces together' and thereby rotating the Idrum with the gear. It is obvious that by varying the amount of pressure between the friction surfaces the speed 'of rotation of the drum may be accordingly varied. As shown, the flexible feeding member 4 is suitably secured to and wound upon the larger surface 49 Vof the drum and is adapted to pass around certain of the guide rolls or sheaves 55, 56, 57 and 53 when arranged in different feeding positions. Carried on the rear end of the feed frame are also members 59 with which the hook 23 engages while the machine is cutting.

Referring to F ig. 6 it will be noted that I have shown a modified arrangement which while requiring a longer machine still enables certain lof my advantages to be obtained. 1n this arrangement the rotor shaft 13 is provided with a worm 60 which meshes with a worm gear 61, j ourna-'led on a vertical axis, to which a crank disc 62 is secured which in turn drives through a connecting rod 63 and a ratchet wheel and pawl 64 and 65, a'

vertical shaft 66 to which is secured a worm 67 in turn meshing with a worm gear 63 on a longitudinally disposed horizontal sha-ft 69 which carries a pinion 70. This pinion in turn meshes with a gear 71 which d-rives theV drum 48. In Fig. 7 l have shown still another modied construction which, while likewise requiring a longer machine than that required kby the construction shown in Figs. 1 to 5, enables an even lower machine to be produced. In this construction, `the gear 30 meshes withfa gear 31 through the connecting rod 34 to the ratchet and pawl 41 and 42 on a sleeve 39. Suitably secured to the sleeve is a worm 72 which meshes with a worm gear 73 journaled on a vertical shaft 74 which in turn drives the cable tensioning device 43 therein rotatable on a vertical axis as distinguished from a longitudinal axis. Inthis case the cable 4 is also guided by two rolls 75 journaled-on vertical shafts on the machine frame.

In the operation of my improved machine it will be noted that the machine -is first brought'toa position adjacent .the face'ofthe coal as fshown in Fig. i8 with the Icutter bar swung around in line with the longitudinal axis of the machine. The cable l wound on the smaller drum 49 is then passed around the sheave 55 and the hook 9.8 is attached to the pin 27 adjacent the face. The motor is then started and the friction clutch 50 is thrown in and the cable is wound in, swinging the cutter bar into the face of the coal. Obviously by varying the amount of application of the friction clutc i, the rate of swing of the bar may be varied through a considerable range. l/Vhen the cutter bar is at substantially right anles to the machine frame 3 the motor is stopped and the bar is locked in position by the pin 29. T ie cable l is then passed around the slieave 56 forwardly along the face and around a pulley secured to an anchor jack A and then rearwardly along the face and attached to the member 59 by means of the hook 28 as shown in Fig. 9. The motor is then started again and the machine advances along the face of the coal at slow or cutting speed, the rate of feed at any time being capable of being varied by the friction clutch or by adjusting the cranl; pin S3 away from or toward the center of the crank dish 32. It is i obvious that any other suitable means for varying the thiow of the pawl may be used advantageously. Vhen the machine cuts at the opposite face as shown Fig. ll or in the opposite direction, the cutter bits are turned in the chain l?, the sumping cut being` made by attaching the cable el at the opposite side of the bar, as shown by F ig. l0, and the machine cuts transversely along the face. F ig. l2 shows a slightly different arrangement utilizing a single drum, the cable ll then being passed along the face to the jack A and then rearwardly along the face and attached to the cutter bar. lVith this arrangement the bar may obviously be swung in under the coal and locked in position, and the machine then moved transversely along the face without rearranging the cable or stopping the motor, or in any way using the drum 49, which in this construction may be omitted if desired.

As a result of my improved construction it will be noted that a machine of improved compact construction is obtained, the length of the machine being materially reduced by disposing the drum on a longitudinal axis as distinguished from a vertical axis with or without the drum driving connections having the ratchet wheel rotatable on a longitudinal axis, while the improved arrangement of the ratchet mechanism with or without the drum on a longitudinally disposed axis likewise produces a similar result, thereby materially facilitating handling at the saine time that the weight and cost of the inacnine is substantially reduced. lt will also be noted that an exceedingly low machine of the drum type is produced, the disposition of the drum on a longitudinal axis enabling a large drum to be used without increasing the height, while ,the use of a horizontal drum with my iniproved ratchet mechanism enables an even lower machine to be produced while keeping down the length of the machine otherwise necessary where such a drum is used. These and other advantages of my improved construction will be clearly apparent to those skilled in the art.

W`hile l have in this application specifically described three forms which my invention may assume in practice, it will be understood that these forms of the saine are shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

l. In a mining machine, a horizontal m0- toi having its axis extending longitudinally of the machine, reversible cutting mechanism driven by said motor, and feeding mechanism adapted to feed said machine in opposite directions curing either direction of cutting including a cable winding drum rotatable continuouslv in only one direction during feeding of the machine while cutting in opposite directions and whose axis is disposed parallel to a line parallel with the axis of said inotor, cooperating guiding means, driving mechanism between said motor and said drum, and a feed cable cooperating with said drum having a free end portion and guiding means for said free end portion for feeding the machine during either direction of cutting.

2. ln a mining machine, a horizontal motor having its axis extending longitudinally of the machine, and feeding mechanism including winding' means disposed at one end of said machine and having flexible feed member winding surfaces of different diameters aiid arranged coaxially with said motor axis, and driving mechanism between the adjacent end of said motor and said winding means.

3. ln a mining machine, a motor, reversible cutting mechanism driven thereby, and feeding mechanism driven thereby including a unidirectionally rotational winding drum disposed on an axis extending longitudinally of the machine and cooperating guiding means, and a flexible cable associated with said drum and said guiding means and operative to feed said machine in either direction during either direction of cutting and during continuous unidirectional rotation of said drum and without disconnecting the driif'ing connection between said drum and motor.

el. In a mining machine, a uni-directionally rotational motor, reversible cutting mechanism driven thereby, and feeding mechanism driven thereby including a uni-directional rotational winding drum disposed on an axis extending longitudinally of the machine and cooperating guiding means, and a flexible cable associated with said drumand said guiding means and operative to feed said machine in either direction during either direction of cutting and during uni-directionrotation of said drum.

5. ln a mining machine, a non-reversible motor, reversing gearing, reversible cutting mechanism driven thereby, and feeding mechanism driven by said motor including a flexible feed member, and an actuating meniber therefor cooperating directly therewith and rotatable on a horizontal axis in a single direction and cooperating guiding means for said flexible member, said mechanism being adapted to feed said machine in either direction during cutting in opposite directions and While maintaining said flexible member in a single operative relation to said actuating member.

6. ln a mining machine, a non-reversible motor, reversible cutting mechanism adapted opposite directions.

7. ln a mining machine, a horizontal motor having its axis disposed longitudinally of the machine, cutting mechanism driven from one end of said motor, feeding mechanism including a Winding member disposed at one end of said machine and having Winding surfaces of different diameters aiicl \vliose axes are disposed longitudinally of said motor, and cooperating flexible feeding means including separate flexible elements cooperating with said Winding surfaces respectively, and means to drive said Winding member from the opposite end of said motor.

8. ln a mining machine, a horizontal motor having its axis disposed longitudinally of the machine, cutting mechanism driven from one end of said motor, feeding mechanism including a Winding drum disposed on a horizontal axis extending longitudinally of the machine at the end of the latter remote from said cutting mechanism and having stepped Winding surfaces thereon, and cooperating flexible feeding means including separate feed cables cooperating With said Winding surfaces respectively, and means to drive said drum from the opposite end ofv said motor.

9. In a mining machine, a motor having its axis extending longitudinally of the machine, cutting mechanism driven from the rear end ofsaid mo.tor,fand feeding mechanism driven from the front end of said motor Vincluding a Winding drinn disposed on an axis extending longitudinally of said motor, and diziviiig mechanism between said motor and drum to drive the latter including mechanical means to vary the speed ofsaid'driving mechanism and mechanical means to vary the speed of said drum independently of said driving n..echanism.

l0. ln a mini-ng machine, a motor having irs axis extending longitudinally of the machine, cutter chain operating mechanism driven thereby, feeding mechanism driven from the front end of said lmotor and includinga Winding drum rotatable on an axisY disposed longitudinally of the machine, and vactu ating means for said mechanisms driven by said motor including a plurality of independently adjustable controlling means for varying the speed of said drum, said drum :being driven only through both of said'speed varying means.

ll. ln a mining machine, a frame, a feed operating member thereon rotatable on an axis extending longitudinally of said machine frame and having steppedoperating surfaces adapted to engage separate elements of a flexible feeding means, driving mechanisin therefor including variable speed transmission mechanism, and an independent controlling mechanism for said feed operating member including a friction clutch through which said feed operating member is-driven.

l2. ln a mining machine, a frame having a feeding mechanism adapted to feed the machine in opposite directions including a feed operating member thereon 'rotatable in a vertical plane on an axis extendinglongitudinally of the machine and having a plurality of operating surfaces adapt-ed to engage separate flexible feeding means, `and cooperating guiding members for said flexible feeding means disposed on each side ofthe axis of said feed operating member, said feed operating member rotating continuously in only one direction and Without disconnecting the same from said motor and said flexible feeding means maintaining a single operative v 'relation to said feed operating member during feeding of the machine in opposite directions.

13. ln a mining machine, a horizontal .motor having its axis extending longitudinally of the machine, and feeding mechanism driven by said motor includingfa feed operating member disposed on an axis extending longitudinally of the machine and parallel to a line parallel with the axis of said motor, and driving mechanism for said feed voperating member including a variable speed ratchet mechanism including an oscillatory element movable in a vertical plane extending transversely of the machine, and a cooperating ratchet disposed on an axis parallel with the axis of said feed operating member.

lll. In a mining machine, amator, cutting.

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mechanism driven from one end of said motor, and feeding means driven from the other end of said motor including a feed operating member disposed on an axis extending longitudinally of the machine, nd driving mechanism between said motor and feed operating member including a variable speed ratchet mechanism including an oscillatory element movable in a vertical plane extencing transversely of the machine and a ratchet disposed on an axis parallel with the axis of said member.

15. In a mining' machine, a machine frame slidable directly on its bcttom on the mine bottom during cutting, a motor carried thereby having its axis extending longitudinally of the machine, cutting mechanism driven from one end of said motor including a cutter bar pivoted on a vertical axis, and feeding' means driven from the other end of said motor for feeding the machine bodily laterally over the mine bottom, including a winding drum whose axis lies in a line perpendicular to said vertical axis, and ratchet mechanism disposed between said motor and drum including an oscillatory element movable in a vertical plane extending transversely of the machine.

1G. A mining machine comprising a frame, cutting mechanism including a cutter bar at one end thereof, feedingmechanism including a plurality of winding drums at the opposite end thereof, and cooperating flexible feeding means including separate cables cooperating` with said drums respectively, a motor between said mechanisms and operatively connected to said cutting mechanism, and operative connections between said motor and said drums including an oscillatory element movable in a vertical plane extending transversely of the machine and a ratchet whose axis extends longitudinally of the machine.

17. A mining' machine comprising a frame, cutting mechanism including a cutter bar at one end thereof, feeding mechanism including a. winding drum disposed at the opposite end thereof and whose axis extends longitudinally thereof, a motor between said mechanisms and operatively connected to said cutting mechanism, and operative connections between said motor and said drum including a ratchet mechanism and actuating means therefor whose axes are horizontal, said ratchet mechanism including` an oscillatory element movable in a. vertical plane extending transversely of the machine.

18. A mining machine comprising a frame, cutting mechanism including a cutter bar atone end thereof, feeding mechanism including a plurality of winding drums disposed at the opposite end thereof and whose axes extend longitudinally ofthe machine, and cooperating flexible feeding means having separate feed cables cooperating with said drums respectively, a motor between said mechanisms and operatively connected to said cutting mechanism, and operative comiections between said motor and said drums including a ratchet mechanism and actuating means therefor whose axes are disposed horizontally, said ratchet mechanism including an oscillatory element movable in a vertical plane extending transversely of the machine.

19. A longwall mining machine comprising a frame, cutting mechanism including a cutter bar at one end thereof, feeding mechanism including a plurality of winding drums at the opposite end thereof, and cooperating flexible feeding means including separate cables cooperating with said drums respectively, a motor between said mechanisms and operatively connected to said cutting mechanism, and operative connections lying generally in a single horizontal plane between said motor and said drums including a ratchet mechanism disposed in a vertical plane extending transversely of the machine and including a ratchet member rotatable on an axis extending longitudinally of the machine.

20. A longwall mining machine comprising a frame, cutting mechanism including a cutter bar at one end thereof, feeding mechanism including a winding drum disposed at the opposite end thereof and whose axis extends longitudinally of the machine, a motor between said mechanisms and operatively connected to said cutting mechanism, and operative connections between said motor and said drum including a ratchet mechanism disposed in a plane extending transversely of the machine and including a ratchet, the axes of said drum and ratchet lying generally in the same horizontal plane.

21. A mining machine comprising a frame, a motor thereon comprising a plurality of intermeshing rotors, cutting mechanism selectively connectible to either rotor to effect drive thereof in opposite directions, mechanism driven by said motor for feeding the machine during either direction of cutting including a winding drum of a diameter substantially equal to the height of the machine and rotatable on an axis extending longitudinally of the machine, and operative driving connections between said drum and one of said rotors.

22. A mining machine comprisng a frame, a motor thereon comprising a plurality of intermeshing rotors having their axes horizontally disposed and extending longitudinally of the machine, cutting mechanism selectively connectible to either rotor to effect drive thereof in opposite directions, mechanism driven by said motor for feeding the machine during either direction of cutting including a winding drum of a diameter substantially equal to the height of the machine and rotatable in a vertical plane on a horizontal axis extending longitudinally of the machine, and

operative driving connections between said winding drum and one of said rotors.

y 23.Y A mining machine comprisng a frame, a horizontal motor thereon comprising a plurality of intermeshing rotors, cutting mechanism selectively connectible to either rotor-to effect drivethereof in opposite directions and including a horizontally swingable cutter bar,

and mechanism driven by said motor for ferent diameter each disposed on an axis extending longitudinally of said machine and cooperatingv flexible feeding means including` separate flexible members cooperating with said feed. operating members respectively, and a horizontal motor having its axis extendinglongitudinally of the machine and disposed between said mechanisms and operatively `connected thereto at opposite ends thereof.

25. A longwall mini-ng machine' comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism -at the other end thereof includinga plurality of vcoa-xially disposed feed operati-ng members of dierent diameter disposed on an axis extending longitudinally of said machineand cooperating flexible feeding means including separate flexible memberslcooperating with said feed operating' members respectively, and a horizontal motor having its axis extending'longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively connected thereto.

26. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at onev end thereof, feeding mechanism at the other end thereof including a plurality of feedoperating members of different diameter each disposed on an axis` extending` longitudinally of said machine, a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and having its'opposite ends respectively operatively connected thereto, and flexible feeding means including separate feeding elements adapted to cooperate directly with different feed operating members.

27. A longwall mining machine. comprising cutting mechanism including a pivoted cut'- ter bar at one end thereof, feeding mechanism at the other end thereof including a plurality of coaxially disposed feed operating members of different diameter each disposed on an axis extending longitudinally of said machine, a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively connected thereto, and flexible feeding means including separate feeding elements adapted to cooperate directly with different feed operating members.

28. A longwall mining machine comprising cutting mechanism including al pivoted cutter bar at one end there-of, feeding mechanism including a plurality of feed operating members of dierent' diameter each disposed on an axis extending longitudinally of said machine, a horizontal motor having its axis extendingV longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively Aconnected thereto, flexible feeding means adapted to cooperate directly with different feed operating members, and means whereby one of said feed operating members'may be utilized to swing the bar and the other tomove the machine bodily along a face.

29. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism including a plurality of coaxially disposed feed operating members of different diameter disposed on an axis extending longitudinally of said machine, a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and having its opposite enos respectively operatively connected thereto, flexible feeding means adapted tocooperate directly with different feed operating members, and means whereby one of said feed operating members may be utilized to swing the bar and the other to move the machine bodily along a face.

30. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism including a plurality of feed operating members of dierent diameter each disposed on an axis extending longituninally of said machine, a horizontal vmotor between said mechanisms and operatively connected thereto, a plurality of flexible feeding members adapted to cooperate directly with different feed operating members, and means whereby the flexible member on the feed operating member of smaller diameter may be used as a single strand connection to swing the bar and the other flexible member used as a double strand connection to move the machine bodily along the face.

31. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mecha- Cil nism including a plurality of coaxially disposed feed operating members of different diameter disposed on an axis extending longitudinally of said machine, a horiaontal motor between said mechanisms and opere tively connected thereto, a plurality flexible feeding members adapted to cooperate directly with different feed operating n cmb'ers, and means whereby the flexible member on the feed operating' member of smaller diameter may be used as a single strand connection to swing the bar and the other used as a double strand connection to move the machine bodily along the face.

32. A longwall mining machine comprising cutting` mechanism including` a pivoted cutter bar at one end thereof, feeding mechanism including a plurality of coaxially disposed feed operating members of diderent diameter each disposed on axis extending longitudinally of said machine, a motor bctween said mechanisms and operatively connected to said cutting mechanism, and operative connections between said motor and said feed operating members including ratchet mechanism having a ratchet wheel rotatable on a longitudinal axis and disposed between said motor and said feed operating` members. and a friction clutch disposed between said feed operating members and said ratchet mechanism.

83. In a mining machine, feeding mechanism therefor comprising a feed operat-ing member rotatable on an axis extending longitudinally of the machine, a flexible feeding member cooperating directly therewith and having a free end portion, and guide means for said flexible member disposed at each side of said feed operating member on inclined axes whereby said free portion of said flexible feed member may be guided from opposite sides of the machine for feeding the machine in opposite directions without rereeving said flexible member relative i to said feed operating member.

34. In a mining machine, flexible feeding means including a flexible feed member having a free end portion, a flexible feed member engaging and actuating means rotatable on an axis extending' longitudinally vof the machine, and flexible feed member guide means disposed at each side of said machine on inclined axes and achpted to guide a flexible feed member substantially tangentially of said actuating means whereby the free end portion of said flexible member may be guided from opposite sides of the machine during feeding of the machine in opposite directions without rereeving said flexible member relative to said feed member actuating means.

35. In a mining machine, flexible feeding means including a flexible feed member having a free end portion, a flexible feed member engaging and actuating means rotatable on an axis extending longitudinally of the machine, and flexible feed member guide eans disposed on each sic e thereof and ro atable on relatively angula 'ly disposed axes whereby the free end portion of sait flexible ember may be guided from opposite sides of hie machine during feidi'ng of the machine in opposite directions wi hout rerceving the flexible member relative to said feed nember actuating means.

3S. ln a mining' machine, feeoing mechanism therefor comprising a flexible feed member having a free end portion, flexible feed member engaging and actuatinomeans rotatable on an axis extending longitudinally so of the machine, and flexi le feed member guide means disposed on each side thereof and rotatable on relatively angularly disposed axes, the guide means on one side thereof being substantially tangential to the upper side of said actuati means while the other guide means is substantially tangential to the lower side thereof whereby the free end portion of said flexible feed member may be guided from opposite sides of the machine during feeding of the machine in opposite directions without rereeving said flexible member relative to said feed member actuating means.

37. In a mining machine, feeding mechanism therefor comprising separate flexible feed members each having free end portion, flexible feed member engaging and actuating means having different diameters with which said feed members rospectivley cooperate and 109 disposed on an extending longitudinally of the machine, and flexible feed member guide means adapted to guide said flexible feed members substantially tangentially of said different diameters whereby the free end portion of each of said flexible means may be extended from opposite sides of the machine during feeding of the machine in opposite directions without rereeving the flexible means relative to said feed member actuat- 11C ing` means.

38. in a mining machine, feeding mechanism therefor comprising flexible feeding means including separate flexible feed members each having a free end portion, flexible feed member engaging and actuating means having different dia net-ers with which said feed member respectively cooperate an d disposed on an axis e udiug longitudinally of ie machine, and i ible fe Ad m ing means disposed on each si le t latter ixeans each iucludf guide members certain of v to guide flexible men tange i one si i ent diametels while i i entially of the othe'` side or t ie uit net rs whereby the free ci d port-ions of un i w .e la() said flexible members may be guided irom nally of the machine, cutting mechanism sedlectively connectible to either rotor to effect drive thereof in opposite direct-ions during cutting in opposite directions, mechanism fr i driven b 1 said motor for feeding the machine s 5 s during either direction of cuttinv' including a winding drum of a diameter substantially equal to the height the machine and rotatable in a vertical plane on a horizontal axis extending longitudinally of the machine, and a cable cooperating with said drum, said cable having but a single operative relation to said drum during feeding of the machine in either direction, and operative driving connections between said winding drum and one of said rotors.

49. A mining machine comprising a frame, a horizontal motor thereon comprising a plurality of intermeshing rotors, cutting mechanism selectively connectible to either rotor to'eifect drive thereof in opposite direct-ions during cutting in opposite directions and including a horizontally swingable cutter bar, and mechanism driven by said motor for feeding the machine during either direction of cutting including a winding drum of a diameter substantially equal to the height of the machine and rotatable in vertical plane on a horizontal axis extending longitudinally of the machine, and a cable having but a single operative relation to said drum during feeding of the machine in either direction, and variable speed driving connections between said winding drinn and said motor.

50. In a mining machine, a machine frame slidable directly on its bottoni on the mine bottom during cutting, a horizontal motor carried thereby having its axis extending longitudinally of the machine, cutting mechanism driven from one end of said motor including a horizontally swingable cutter bar, and feeding mechanism driven from the opposite end of said motor for feeding the machine bodily laterally over the mine bottom including a feed operating member and driving mechanism between said motor andsaid feed operating member including a variable speed ratchet mechanism including an oscillating element movable in a vertical plane extending transversely of the machine and disposed bodily between said inotor and said feed operating member.

51. In a mining machine, a horizontal motor having its axis disposed longitudinally of the machine, reversible cutting mechanism driven by said motor adapted to cut in opposite directions, and feeding mechanism including a winding member disposed at one end of said machine and having winding surfaces of different diameters and whose axes are disposed longitudinally of said motor,

.L flexible feeding members cooperating with said winding surfaces of said winding mem- 1 bers, said winding members rotating in only one direction and said flexible members having only a single operative relation to said winding member during feeding of the machine in opposite directions, and means to drive said winding member from said motor.

52. In a mining machine, a horizontal motor having its axis disposed longitudinally of the machine, reversible cutting mechanism adapted to cut in opposite directions driven by said motor, and feeding mechanism including a drum disposed on a horizontal axis extending longitudinally of the machine and having stepped winding surfaces thereon, flexible members coopera-ting with said winding surfaces of said drum, said drum rotating in only one direction and said flexible members having but a single operative relation to said drum during feeding of the machine in opposite directions, and means to drive the drum from said motor.

53. in a mining machine, a motor, cutting mechanism driven from one end of said motor including a cutter bar projecting from one end of said machine, and feeding means driven from the other end of said mot-or including flexible feed member actuating means carried at the other end of said machine, said means comprising a plurality of drums one of which is rotatable on an aXis extending longitudinally of the machine frame.

5e. in a mining machine, a motor, cutting mechanism driven from one end of said motor including a cutter bar projecting from one end of said machine, and feeding means driven from the other end of said motor including flexible feed member actuating means carried at the other end of said inachine, said means comprising a plurality of drums one of which is rotatable on an axis extending longitudinally of the machine frame, and one of which is adapted to be used during a sumping operation and the other during a lateral feeding operation.

55. in a mining machine, a motor, reversible cutting mechanism driven from one end of said motor including a projecting cutter bar, and feeding means driven from the other end of said motor including a plurality of iexible feed members engaging and actuating members one of which is rotatable on an axis extending longitudinally of the machine, and means for guiding different flexible members to said actuating members from opposite sides of said machine to effect feed of the machine during opposite directions of cutting.

56. A mining machine slidable over a mine bottom on its bottom including a frame having at one end thereof a pivoted cutter bar having reversible cutting inechanism'associated therewith and operative on actuation of saidk cutting mechanism associated therewith oppositely to cut and clear lierfs in opposite directions when the machine frame is oppositely propelled, and means for feeding said machine in opposite direct-ions during cutting in eitherdirection including a uni-directionally rotational cable winding drum rotatable continuously in the same direction irrespective of the direction in which said cutting mechanism is actuated and disposed adjacent the other end of said frame and rotatable upon a horizontal axis extending longitudinally of said frame, a cable cooperating with said drum, said cable having but a single operativerelation to said drum during feeding of the machiney in either direction, and guiding members adapted to cooperate with said cable and selectively operative dependent upon the direction of feed and arranged at opposite sides of the end of said frame remote from said cutting mechanism.

57. A mining machine slidable over a mine bottom on its bottom including a frame having at one end thereof a pivoted cutter bar having reversible cutting mechanism associated therewith and operative on actuation of said cutting mechanism associated therewith oppositely to cut and clear lrerfs in opposite directions when the machine frameJ is oppositely propelled, and means for feeding said machine in opposite directions during cutting in either direction including uni-directionally rotational cable winding drums adjacent the other end of said frame and rctatable upon a horizontal axis extending longitudinally of said frame, cables cooperating with said drums and having free end portions, and having but a single operative relation to said drums during feeding of the machine in either direction, and guiding means for the free end portions of said cables including guide members arranged in pairs at opposite sides of the central longitudinal vertical plane of said machine frame and at the end of the latter remote from said cutting mechanism.

58. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism at the other end thereof including a plurality of feed operating members each adapted to cooperate directly with flexible feeding means and disposed on an axis extending longitudinally of the machine, and a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and operativelv connected thereto at opposite ends thereof.

59. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism at the other end thereof including a plurality of coaxially disposed feed operating members disposed on an axis extending longitudinally of the machine and each adapted to cooperate directly with flexible feeding means, and a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively connected thereto.

60. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism at the other end thereof including a plurality of feed operating members each adapted to cooperate directly with flexible feeding means and disposed on an axis extending longitudinally of the machine, a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively connected thereto, and flexible feeding means adapted to cooperate with different feed operating members.

6l. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism at the other end thereof including a plurality of coaxially disposed feed operating members disposed on an axis extending longitudinally of the machine and each adapted to cooperate directly with flexible feeding means, a horizontal motor having its axis extending longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively connected thereto, and flexible feeding means adapted .to cooperate with different feed operating members.

62. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism including a plurality of feed operating members each disposed on an axis extending longitudinally of said machine and adapted to cooperate directly with flexible feeding means, a horizontal motor havingY its axis extending longitudinally of the machine and disposed between said mechanisms and having its opposite ends respectively operatively connected thereto, flexible feeding means adapted to cooperate with different feed operating members, and means whereby one of said feed operating members may be utilized to swing said bar and the other to move the machine bodily along a face.

63. A mining machine comprising a low compact frame slidable on its bottom on the mine bottom and including a motor casing directly engaging the mine bottom and hous- 'iio ing a horizontal motor having its axis extend- A feed operating members rotatable on horizontal axes, and flexible feeding means including separate feeding elements cooperating directly with different feed operating members.

64;. A mining machine comprising a low compact frame slidable on its bottom directly on the mine bottom and including a motor casing directly slidably engaging the mine bottom and housing a horizontal motor having its axis extending longitudinally of the machine, the height of said motor being only that requisite for its power producing function and determining the height of the machine, cutting mechanism driven from one end of said motor including a pivoted cutter bar at one end of said frame, and feeding means driven from the opposite end of said motor including a plurality of feed operating members rotatable on horizontal axes and disposed at the end of said frame remote from said bar pivot, and flexible feeding means including separate feeding elements cooperating directly with different feed operating members.

65. A mining machine comprising a low compact frame slidable on its bottom directly on the mine bottom and including a motor casing directly slidably engaging the mine bottom and housing a horizontal mot-or having its axis extending longitudinally of the machine, the height of said motor being only that requisite for its power producing function and determining the height of the machine, cutting mechanism driven from one end of said motor including a pivoted cutter bar at one end of said frame, and feeding means driven from the opposite end of said motor including a plurality of feed operating members rotatable on horizontal axes and disposed within the lateral limits of said frame at the end of said frame remote from said bar pivot, and flexible feeding means including separate feeding elements cooperating directly with different feed operating members.

66. A mining machine comprising a frame slidable on its bottom on the mine bottom and including a motor casing housing a horizontal motor having its axis extending longitudinally of the machine, cutting mechanism driven from one end of said motor including a cutter bar projecting from said frame at one end thereof, and feeding means driven from the opposite end of said motor includ` ing coaxial feed operating members rotatable on a horizontal axis, and exible feeding means including separate feeding elements cooperating directly with different feed operating members.

67. A mining machine comprising a frame slidable on its bottom on the mine bottom and including a motor casing housing a horizontal motor having its axis extending longitudinally of the machine, cutting mechanism driven from one end of said motor including a cutter bar projecting from said frame at one end thereof, and feeding means driven from the opposite end of said motor including coaxial feed operating members rotatable on a horizontal axis extending longitudinally of the machine, and flexible feeding means including separate feeding elements cooperating directly with different feed operating members.

68. A mining machine comprising a frame, a motor thereon comprising a plurality of intermeshing rotors, cutting mechanism selectively connectible to either rotor to effect drive thereof in opposite directions during cutting in opposite directions, mechanism driven by said motor for feeding the machine during either direction of cutting including a plurality of winding drums rotatable on axes extending longitudinally of the machine, cables cooperating with said drums respectively, said cables having but a single operative relation to said drums during feeding of the machine in either direction, and operative driving connections between said drums and one of said rotors.

69. A mining machine comprising a frame, a motor thereon comprising al plurality of intermeshing rotors having their axes horizontally disposed and extending longitudinally of the machine, cutting mechanism selectively connectible to either rotor to effect drive thereof in opposite directions during cutting in opposite directions, mechanism driven by said motor for feeding the machine during either direction of cutting including a plurality of winding drums rotatable in vertical planes on horizontal axes extending longitudinally of the machine, and cables cooperating with said drums respectively, said cables having but a single operative relation to said drums during feeding of the machine in either direction, and operative driving connections between said winding drums and one of said rotors.

70. A mining machine comprising a frame, a horizontal motor thereon comprising a plurality of intermeshing rotors, cutting mechanism selectively connectible to either rotor to effect drive thereof in opposite directions during` cutting in opposite directions and including a horizontally swingable cutter bar, and mechanism driven by said motor for feeding the machine during either direction of cutting including a plurality of winding drums rotatable in vertical planes on horizontal axes extending longitudinally of the machine and cables having but a single opera-tive relation to'said drums during feeding of the machine in either direction, and variable speed driving connections between said Winding drums and said motor.

71. A longwall mining machine comprising cutting mechanism including a pivoted cutter bar at one end thereof, feeding mechanism including a plurality of feed operating members each disposed on an axis extending longitudinally of the machine and disposed at the end of the machine remote from said bar pivot, a horizontal motor haying its axis extending longitudinally of the machine and disposed between said mechai nisms and having its opposite ends respectively operatively connected thereto, and flexible feeding means adapted to cooperate directly with different Jfeed operating members.

In testimony whereof I aiix my signature.

CHARLES F. oseoon 

